WO2017200296A1 - 토크 센서, 토크 앵글 센서 및 이를 포함하는 조향 장치 - Google Patents

토크 센서, 토크 앵글 센서 및 이를 포함하는 조향 장치 Download PDF

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Publication number
WO2017200296A1
WO2017200296A1 PCT/KR2017/005116 KR2017005116W WO2017200296A1 WO 2017200296 A1 WO2017200296 A1 WO 2017200296A1 KR 2017005116 W KR2017005116 W KR 2017005116W WO 2017200296 A1 WO2017200296 A1 WO 2017200296A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
rotor
clip
fixing
contact
Prior art date
Application number
PCT/KR2017/005116
Other languages
English (en)
French (fr)
Korean (ko)
Inventor
이창환
Original Assignee
엘지이노텍 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020160060078A external-priority patent/KR102485023B1/ko
Priority claimed from KR1020160094241A external-priority patent/KR102509870B1/ko
Application filed by 엘지이노텍 주식회사 filed Critical 엘지이노텍 주식회사
Priority to CN201780030681.8A priority Critical patent/CN109154530B/zh
Priority to EP17799653.5A priority patent/EP3460434B1/en
Priority to US16/302,560 priority patent/US10739215B2/en
Priority to JP2018560538A priority patent/JP6946346B2/ja
Publication of WO2017200296A1 publication Critical patent/WO2017200296A1/ko

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
    • B62D6/08—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque
    • B62D6/10—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque characterised by means for sensing or determining torque
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
    • G01L3/104—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means involving permanent magnets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/12—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring axial thrust in a rotary shaft, e.g. of propulsion plants
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
    • G01L5/221—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers to steering wheels, e.g. for power assisted steering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D15/00—Steering not otherwise provided for
    • B62D15/02—Steering position indicators ; Steering position determination; Steering aids
    • B62D15/021—Determination of steering angle
    • B62D15/0215—Determination of steering angle by measuring on the steering column
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
    • B62D5/0481—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such monitoring the steering system, e.g. failures

Definitions

  • Embodiments relate to a torque sensor, a torque angle sensor and a steering apparatus comprising the same.
  • a vehicle controls a driving direction by manipulating a steering wheel connected to a wheel.
  • the operation force is weakened, so that it is difficult to quickly operate the power steering system (EPS).
  • EPS power steering system
  • Such a power steering device is a device for reducing the force of operation by intervening a power unit in the operation of the steering wheel.
  • This power steering system allows the driver to drive the motor in the Electronic Control Unit according to the driving conditions detected by the vehicle speed sensor, torque angle sensor and torque sensor to ensure turning stability and provide quick resilience. Ensure safe driving.
  • the torque angle sensor may be classified into a functional torque sensing module and an angle (steering angle) sensing module. These sensing modules are included inside the housing.
  • the housing containing the sensing module is installed inside the column housing. At this time, the housing is fixed so as not to rotate inside the color housing.
  • a fixing structure may be provided on the outer circumferential surface of the housing and the inner wall of the column housing. However, the general fixing structure is to secure the fixing. It is implemented in a form that completely constrains the flow of the housing.
  • an embodiment of the present invention is to provide a torque sensor, a torque angle sensor, and a steering device including the same, which can secure fluidity while securing the coupling between the sensor module and the column housing.
  • Embodiments to be solved by the embodiments are not limited to the above-mentioned problems, and other problems not mentioned herein will be clearly understood by those skilled in the art from the following description.
  • the present invention for achieving the above embodiment includes a rotor, a stator disposed outside the rotor, a sensing unit for measuring a magnetic field generated between the rotor and the stator, and a housing for accommodating the rotor and the stator,
  • a torque sensor may be provided that includes a fixing part protruding from an outer circumferential surface of the housing and including a curved surface in point contact with an external fixture.
  • the fixing part may include a first clip and a second clip protruding from each other on the outer circumferential surface of the housing to form an accommodation space of the external fixture therebetween.
  • the first clip and the second clip may each include a tip portion formed at the tip of the pillar portion and the pillar portion on the outer circumferential surface of the housing and including the curved surface.
  • the pillar portion is elastically deformable, and the first distance, which is the shortest distance between the tip portion of the first clip and the tip portion of the second clip, is between the pillar portion of the first clip and the pillar portion of the second clip. It may be smaller than the second distance which is the shortest distance.
  • the first distance may be smaller than the thickness of the external fixture.
  • the pillar portion may be formed to be inclined with respect to the radial reference line passing through the center of the center hole.
  • Another invention for achieving the above embodiment includes a rotor, a stator disposed outside the rotor, a sensing unit for measuring a magnetic field generated between the rotor and the stator, and a housing for accommodating the rotor and the stator, An angle sensor module and a torque sensor module disposed inside the housing may be provided, and a torque angle sensor including a fixing part protruding from an outer circumferential surface of the housing and including a curved surface in point contact with an external fixture may be provided.
  • the fixing part may include a first clip and a second clip protruding from each other on the outer circumferential surface of the housing to form an accommodation space of the external fixture therebetween.
  • the first clip and the second clip may each include a tip portion formed at the tip of the pillar portion and the pillar portion on the outer circumferential surface of the housing and including the curved surface.
  • the pillar portion is elastically deformable, and the first distance, which is the shortest distance between the tip portion of the first clip and the tip portion of the second clip, is between the pillar portion of the first clip and the pillar portion of the second clip. It may be smaller than the second distance which is the shortest distance.
  • the first distance may be smaller than the thickness of the external fixture.
  • the pillar portion may be formed to be inclined with respect to the radial reference line passing through the center of the center hole.
  • the housing including a column housing and a center hole including a fixed rib protruding on the inner surface of the inner wall, and includes a torque sensor module and an angle sensor module disposed inside the housing; And a torque angle sensor including a fixing part protruding from an outer circumferential surface of the housing and including a curved surface in point contact with the fixing rib.
  • the fixed rib may include a contact plane in contact with the curved surface.
  • An embodiment includes a rotor, a stator disposed outside the rotor, a sensing unit measuring a magnetic field generated between the rotor and the stator, and a housing accommodating the rotor and the stator, wherein the housing protrudes from an outer circumferential surface thereof.
  • the fixing part may include a contact part contacting an external fixture and an elastic part elastically connecting the housing and the contact part.
  • the pair of fixing parts may protrude to face each other on the outer circumferential surface of the housing.
  • the elastic portion may include a curved surface.
  • the contact portion may comprise a plane.
  • the first distance which is the shortest distance between the contact portions of the pair of fixing parts, may be formed smaller than the thickness of the external fixing part.
  • the contact portions of the pair of fixing parts may be arranged to face each other.
  • the fixing portion may include a stopper extending from the end of the contact portion.
  • the stopper may extend toward the elastic portion.
  • the contact portion includes an upper inclined surface and a lower inclined surface, respectively
  • the upper inclined surface may be formed to be inclined from the plane to the top surface of the contact portion, and the lower inclined surface may be formed to be inclined from the plane to the bottom surface of the contact portion.
  • the contact portion may be in linear contact with the external fixture.
  • An embodiment includes a rotor, a stator disposed outside the rotor, a sensing unit measuring a magnetic field generated between the rotor and the stator, and a housing accommodating the rotor and the stator, wherein the housing protrudes from an outer circumferential surface thereof. And a fixing part, wherein the fixing part includes a contact part in contact with an external fixture and an elastic part elastically connecting the housing and the contact part.
  • the contact portion may be in linear contact with the external fixture.
  • the pair of fixing parts may protrude to face each other on the outer circumferential surface of the housing.
  • the elastic portion may include a curved surface.
  • the contact portion may comprise a plane.
  • the first distance which is the shortest distance between the contact portions of the pair of fixing parts, may be formed smaller than the thickness of the external fixing part.
  • the contact portions of the pair of fixing parts may be arranged to face each other.
  • the fixing portion may include a stopper extending from the end of the contact portion.
  • the stopper may extend toward the elastic portion.
  • the contact portion includes an upper inclined surface and a lower inclined surface, respectively, the upper inclined surface is formed to be inclined from the plane to the upper surface of the contact portion, the lower inclined surface is formed to be inclined from the plane to the lower surface of the contact portion Can be.
  • An embodiment includes a rotor, a stator disposed outside the rotor, a sensing unit measuring a magnetic field generated between the rotor and the stator, and a housing accommodating the rotor and the stator, wherein the housing protrudes from an outer circumferential surface thereof. And a fixing part, wherein the fixing part includes a contact part in contact with an external fixture and a torque sensor including an elastic part elastically connecting the housing and the contact part.
  • the contact portion may be in linear contact with the external fixture.
  • the pair of fixing portions may protrude to face each other on the outer circumferential surface of the housing.
  • the elastic portion may include a curved surface.
  • the contact portion may comprise a plane.
  • the first distance which is the shortest distance between the contact portions of the pair of fixing parts, may be formed smaller than the thickness of the external fixture.
  • the contact portions of the pair of fixing parts may be arranged to face each other.
  • the fixing portion may include a stopper extending from the end of the contact portion.
  • the stopper may extend toward the elastic part.
  • the steering device wherein the contact portion comprises an upper inclined surface and a lower inclined surface, respectively
  • the upper inclined surface may be formed to be inclined from the plane to the top surface of the contact portion, and the lower inclined surface may be formed to be inclined from the plane to the bottom surface of the contact portion.
  • the steering apparatus further comprises a column housing including a fixed rib, wherein the torque sensor may be disposed inside the column housing.
  • the contact portion may contact the fixed rib.
  • the fixed rib may include a curved surface in contact with the contact portion.
  • the fixed rib may include a first rib and a second rib, and a space may be formed between the first rib and the second rib.
  • An embodiment includes a rotor, a stator disposed outside the rotor, a sensing unit measuring a magnetic field generated between the rotor and the stator, and a housing accommodating the rotor and the stator, wherein the housing protrudes from an outer circumferential surface thereof.
  • the fixing unit may include a steering unit including a torque angle sensor including a contact unit contacting an external fixture and an elastic unit elastically connecting the housing and the contact unit.
  • the contact portion may be in linear contact with the external fixture.
  • the pair of fixing portions may protrude to face each other on the outer circumferential surface of the housing.
  • the elastic portion may include a curved surface.
  • the contact portion may comprise a plane.
  • the first distance which is the shortest distance between the contact portions of the pair of fixing parts, may be formed smaller than the thickness of the external fixture.
  • the contact portions of the pair of fixing parts may be arranged to face each other.
  • the fixing portion may include a stopper extending from the end of the contact portion.
  • the stopper may extend toward the elastic part.
  • the steering apparatus wherein the contact portion comprises an upper inclined surface and a lower inclined surface, respectively, the upper inclined surface is formed to be inclined from the plane to the upper surface of the contact portion, the lower inclined surface is the bottom surface of the contact portion in the plane It can be formed to be inclined.
  • the fixing part including a curved surface in point contact with the fixed rib of the column housing provides an advantageous effect of ensuring fluidity while securing the coupling between the sensor module and the column housing.
  • a fixing portion including a plane that is in line contact with the fixed ribs of the column housing, to provide an advantageous effect that can ensure the fluidity while ensuring the bond between the sensor module and the column housing.
  • FIG. 1 illustrates a sensor device according to an embodiment
  • FIG. 2 is an exploded view of the sensor device shown in FIG.
  • Figure 5 is a side view of the housing, showing a fixing portion coupled to the fixed rib of the column housing,
  • FIG. 6 is a view showing a coupling state of the fixing rib and the fixing portion
  • FIG. 8 illustrates a sensor device according to another embodiment
  • FIG. 9 is an exploded view of the sensor device shown in FIG. 8.
  • FIG. 11 is a view showing a fixed rib of the column housing
  • FIG. 12 is a side view of the housing, showing a fixing portion coupled to the fixing rib of the column housing,
  • FIG. 13 is a view showing a coupling state of the fixing rib and the fixing portion
  • 15 is a view showing the front of the fixing part.
  • ordinal numbers such as second and first
  • first and second components may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
  • second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component.
  • FIG. 1 is a view showing a torque angle sensor according to the embodiment
  • Figure 2 is an exploded view of the torque angle sensor shown in FIG.
  • the sensor device may include a housing 100 and a torque sensor module 200 and an angle sensor module 300.
  • the housing 100 may include an upper housing 100A and a lower housing 100B.
  • the angle sensor module 200 and the torque sensor module 300 may be accommodated between the upper housing 100A and the lower housing 100B.
  • Any one of the first axis and the second axis defined in the embodiment may be an input shaft connected to the steering wheel of the vehicle, and the other may be an output shaft connected to the wheel of the vehicle.
  • the torque sensor module 200 detects a magnetic field generated by the torsion of the first axis and the second axis.
  • the torque sensor module 200 may include a rotor 210 connected to the first shaft and a stator 220 connected to the second shaft.
  • the rotor 210 has a rotor core coupled to the first shaft, and a magnet may be attached to the outer circumferential surface of the rotor core.
  • the rotor 210 may be rotatably disposed inside the stator 220.
  • the stator 220 may be arranged in a form in which two stator rings face each other, and the two stator rings may be accommodated in the holder. Also.
  • the torque sensor module 200 may include a magnetic element for measuring a magnetic field generated between the rotor 210 and the stator 220, and a collector disposed between the magnetic element and the stator part.
  • the angle sensor module 300 may include a main gear 310 that rotates in coordination with the first axis or the second axis, and two sub gears 320 that are gear-coupled with the main gear 310.
  • the main gear 310 may be integrally rotated with the second shaft.
  • the sub gear 320 is rotated according to the rotation of the main gear 310.
  • a magnet may be mounted to the two sub gears 320.
  • the printed circuit board may include elements capable of measuring the magnetic field generated by the rotation of the magnet mounted on the sub-gear, which may be any one of a magnetoresistive element (AMRIC) and a Hall element (Hall IC). have.
  • AMRIC magnetoresistive element
  • Hall element Hall element
  • FIG 3 is a view showing a fixing part of the housing.
  • the housing 100 may have a center hole A for inserting the first and second shafts.
  • the fixing unit 110 may be provided to protrude from the outer circumferential surface of the housing 100. Fixing unit 110 is configured for coupling with the column housing.
  • FIG. 4 is a view showing a fixed rib of the column housing.
  • fixing ribs 21 may protrude from the inner wall of the column housing 20 toward the inside thereof.
  • the fixing rib 21 is fitted to the fixing part 110.
  • the fixed rib 21 may include a contact plane on the side.
  • the cross section may be implemented in a rectangular shape.
  • the fixing part 110 may include a first clip 111 and a second clip 112.
  • the first clip 111 and the second clip 112 protrude from the outer circumferential surface of the housing 100, respectively.
  • An accommodation space of the fixing rib 21 is formed between the first clip 111 and the second clip 112.
  • the first clip 111 and the second clip 112 may be formed to be elastically deformable in response to an external force.
  • FIG. 5 is a side view of the housing and illustrates a fixing part coupled to the fixing rib of the column housing.
  • the fixed rib 21 is inserted into a receiving space between the first clip 111 and the second clip 112.
  • the housing 100 may be fixed to the column housing 20 (FIG. 4).
  • FIG. 6 is a view showing a coupling state of the fixing rib and the fixing portion
  • Figure 7 is a view showing the fixing portion.
  • a fixing rib 21 is fitted into the fixing part 110. That is, the fixing rib 21 is fitted between the first clip 111 and the second clip 112.
  • the first clip 111 and the second clip 112 may include pillar portions 111a and 112a and tip portions 111b and 112b, respectively.
  • the pillars 111a and 112a protrude from the outer circumferential surface of the housing 100.
  • the tip portions 111b and 112b may be formed at the ends of the pillar portions 111a and 112a.
  • the pillar portions 111a and 112a may be formed to be elastically deformable.
  • the tip portions 111b and 112b may include curved surfaces in point contact with the fixed ribs 21.
  • the tip portions 111b and 112b may be implemented to include a spherical surface in a spherical shape or hemispherical shape.
  • the shortest distance between the tip portion 111b of the first clip 111 and the tip portion 112b of the second clip 112 is referred to as L1.
  • the shortest distance between the pillar portion 111a of the first clip 111 and the pillar portion 112 of the second clip 112 is referred to as L2.
  • L1 may be formed smaller than the thickness (W of FIG. 5) of the fixed rib 21. And L1 may be formed smaller than L2.
  • the tip portions 111b and 112b are in point contact with the side surfaces of the fixed rib 21. This is because the tip portions 111b and 112b include spherical surfaces.
  • the pillars (111a, 112a) may be formed to be inclined so that L1 is smaller than L2. That is, the reference line P1 representing the longitudinal direction of the pillar portion 111a of the first clip 111 forms the inclination angle R1 with the center line CL passing through the center C of the housing 100. It may be disposed inclined to the outer peripheral surface of the. In addition, the reference line P2 representing the longitudinal direction of the pillar portion 112a of the second clip 112 may form the inclination angle R2 with the center line CL passing through the center C of the housing 100. It may be disposed inclined to the outer peripheral surface of the.
  • the pillar portions 111a and 112a are configured to be collected together toward the tip portions 111b and 112b. Tip portions 111b and 112b are opened when the fixed ribs 21 are fitted, and the configuration of the pillar portions 111a and 112a has an advantage of increasing resistance to internal stresses of the pillar portions 111a and 112a.
  • each pillar 111a and 112a may be formed to increase in cross-sectional area toward the housing 100.
  • the length of the pillar portion 111a of the first clip 111 and the length of 112a of the second clip 112 may be the same.
  • the size of the tip portion 111b of the first clip 111 and the size of the tip portion 112b of the second clip 112 may be the same.
  • the exemplary embodiment is not limited thereto, and the length of the pillar portion 111a of the first clip 111 and the length of the 112a of the second clip 112 may be different in correspondence to the shape of the fixed rib 21. It can be carried out.
  • the size of the tip portion 111b of the first clip 111 and the size of the tip portion 112b of the second clip 112 may be different.
  • the configuration of the fixing part 110 has an advantage of easy absorption of external vibration or shock transmitted to the housing 100.
  • Such a housing 100 is very good in assembly with the column housing 20. Even if the alignment of the position of the fixing rib 21 formed in the column housing 20 and the position of the fixing part 110 of the housing 100 is not precise, there is an advantage in assembly.
  • FIG. 8 is a diagram illustrating a sensor device according to another embodiment
  • FIG. 9 is an exploded view of the sensor device shown in FIG. 1.
  • the sensor device may include a housing 100 and a torque sensor module 200 and an angle sensor module 300.
  • the housing 100 may include an upper housing 100A and a lower housing 100B.
  • the angle sensor module 200 and the torque sensor module 300 may be accommodated between the upper housing 100A and the lower housing 100B.
  • Any one of the first axis and the second axis defined in the embodiment may be an input shaft connected to the steering wheel of the vehicle, and the other may be an output shaft connected to the wheel of the vehicle.
  • the torque sensor module 200 detects a magnetic field generated by the torsion of the first axis and the second axis.
  • the torque sensor module 200 may include a rotor 210 connected to the first shaft and a stator 220 connected to the second shaft.
  • the rotor 210 has a rotor core coupled to the first shaft, and a magnet may be attached to the outer circumferential surface of the rotor core.
  • the rotor 210 may be rotatably disposed inside the stator 220.
  • the stator 220 may be arranged in a form in which two stator rings face each other, and the two stator rings may be accommodated in the holder. Also.
  • the torque sensor module 200 may include a magnetic element for measuring a magnetic field generated between the rotor 210 and the stator 220 and a collector for collecting the magnetic field.
  • the angle sensor module 300 may include a main gear 310 that rotates in coordination with the first axis or the second axis, and two sub gears 320 that are gear-coupled with the main gear 310.
  • the main gear 310 may be integrally rotated with the second shaft.
  • the sub gear 320 is rotated according to the rotation of the main gear 310.
  • a magnet may be mounted to the two sub gears 320.
  • the printed circuit board may include elements capable of measuring the magnetic field generated by the rotation of the magnet mounted on the sub-gear, which may be any one of a magnetoresistive element (AMRIC) and a Hall element (Hall IC). have.
  • AMRIC magnetoresistive element
  • Hall element Hall element
  • FIG. 10 is a view showing a fixing part of the housing.
  • the housing 100 may have a center hole A for inserting the first and second shafts.
  • the fixing part 120 may be provided to protrude from the outer circumferential surface of the housing 100. Fixing part 120 is configured for coupling with the column housing.
  • FIG. 11 is a view showing a fixed rib of the column housing.
  • a fixed rib 21 may be formed in the column housing 20.
  • the fixing rib 21 is fitted to the fixing part 120.
  • a pair of fixing parts 120: 121 and 122 may protrude from the outer circumferential surface of the housing 100, respectively.
  • An accommodation space of the fixing ribs 21 is formed between the pair of fixing portions 120: 121 and 122.
  • the fixing part 110 is formed to be elastically deformable in response to an external force.
  • FIG. 12 is a side view of the housing and illustrates a fixing portion coupled to the fixing rib of the column housing
  • FIG. 13 is a view illustrating a coupling state of the fixing rib and the fixing portion.
  • the fixing ribs 21 are inserted into the receiving spaces between the pair of fixing parts 120: 121 and 122.
  • the housing 100 may be fixed to the column housing (20 of FIG. 11).
  • the shortest distance d of the pair of fixing parts 120, 121, and 122 may be smaller than the thickness (W of FIG. 12) of the fixing rib 21.
  • Figure 15 is a view showing the front of the fixing portion.
  • the fixing parts 120: 121 and 122 may include elastic parts 121a and 122a and contact parts 121b and 122b.
  • the contact portions 121b and 122b are portions in contact with the fixed ribs 21, and the elastic portions 121a and 122a elastically connect the housing 100 and the contact portions 121b and 122b. Stoppers 121c and 122c may be extended to end portions of the contact parts 121b and 122b.
  • the fixing parts 120, 121, and 122 may be formed by bending and bending a strip-shaped face member having a predetermined thickness, respectively. That is, the elastic parts 121a and 122a, the contact parts 121b and 122b, and the stoppers 121c and 122c may be described separately according to their shapes and functional characteristics, and may be one means connected to each other up and down.
  • the elastic parts 121a and 122a protrude from the outer circumferential surface of the housing 100.
  • the elastic parts 121a and 122a are coupled to the housing 100 in a cantilever shape to facilitate elastic deformation.
  • the two elastic parts 121a and 122a are bent to collect their ends at opposite positions to include curved surfaces.
  • the contact parts 121b and 122b may be formed by bending the ends of the elastic parts 121a and 122a toward the housing 100.
  • the contact portions 121b and 122b may include planes 121ba and 122ba in line contact with the fixed rib 21.
  • the plane 121ba of one fixing part 121 and the plane 122ba of the other fixing part 122 are disposed to face each other.
  • the fixing rib 21 may be formed to include a curved surface in line contact with the plane (121ba, 122ba) of the fixing part 120.
  • the fixed rib 21 may be implemented in a cylindrical shape.
  • the fixed rib 21 may be divided into a first rib 21a and a second rib 21b. A separation space is formed between the first rib 21a and the second rib 21b.
  • the first rib 21a may contact the plane 121ba of any one fixing part 121.
  • the second rib 21b may contact the plane 122ba of the other fixing part 122.
  • Each of the first ribs 21a and the second ribs 21b may have a semi-cylindrical shape having a semicircular cross section.
  • the stoppers 121c and 122c may be formed by bending toward the elastic parts 121a and 122a at the ends of the contact parts 121b and 122b.
  • the stoppers 121c and 122c serve to prevent the contact parts 121b and 122b from being excessively deformed.
  • the fixing rib 21 presses the planes 121ba and 122ba of the fixing part 120, and the contact parts 121b and 122b are provided. Is going on. Since the contact portions 121b and 122b that are opened hold the fixed ribs 21 through the restoring force, the coupling portions 121b and 122b are secured as the coupling force between the housing 100 and the column housing 20.
  • the housing Since the contact portions 121b and 122b are in linear contact with the fixed ribs 21, and the elastic displacement sections of the contact portions 121b and 122b are large due to the structure of the fixed portion 120 that is bent, the housing is fixed to the fixed ribs 21. In the state where the 100 is fixed, not only the left and right flow of the housing 100, but also a vertical flow is possible. Therefore, the flow direction of the housing 100 has various advantages.
  • the configuration of the fixing part 110 has an advantage of easy absorption of external vibration or shock transmitted to the housing 100.
  • the contact part 121b of any one fixing part 121 may include an upper inclined surface 121bb and a lower inclined surface 121bc.
  • the upper inclined surface 121bb is formed to be inclined from the plane 121ba to the top surface of the contact portion 121b.
  • the lower inclined surface 121bc is inclined from the plane 121ba to the bottom surface of the contact portion 121b.
  • the contact portion 122b of the other fixing part 122 may include an upper inclined surface 122bb and a lower inclined surface 122bc.
  • the upper inclined surface 122bb is formed to be inclined from the plane 122ba to the top surface of the contact portion 122b.
  • the lower inclined surface 122bc is inclined from the plane 122ba to the bottom surface of the contact portion 122b.
  • the upper inclined surfaces 121bb and 122bb and the lower inclined surfaces 121bc and 122bc extend the inlet into which the fixed ribs 21 are inserted.
  • the fixed rib 21 is guided to be more smoothly inserted into the receiving space.
  • Such a housing 100 is very good in assembly with the column housing 20. Even if the alignment of the position of the fixing rib 21 formed in the column housing 20 and the position of the fixing part 120 of the housing 100 is not precise, there is an advantage in assembly.
  • 20 column housing, 21: fixed rib, 100: housing, 110, 120: fixed part, 111: first clip, 112: second clip, 121a, 122a: elastic part, 121b, 122b: contact part, 121ba, 122ba: flat, 121c, 122c: stopper, 200: angle sensor module, 210: rotor, 220: stator, 300: torque sensor module, 310: main gear, 320: sub gear

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
PCT/KR2017/005116 2016-05-17 2017-05-17 토크 센서, 토크 앵글 센서 및 이를 포함하는 조향 장치 WO2017200296A1 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201780030681.8A CN109154530B (zh) 2016-05-17 2017-05-17 传感器装置
EP17799653.5A EP3460434B1 (en) 2016-05-17 2017-05-17 Torque sensor and torque angle sensor, and steering apparatus comprising same
US16/302,560 US10739215B2 (en) 2016-05-17 2017-05-17 Sensor apparatus
JP2018560538A JP6946346B2 (ja) 2016-05-17 2017-05-17 センサ装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020160060078A KR102485023B1 (ko) 2016-05-17 2016-05-17 토크 센서, 토크 앵글 센서 및 이를 포함하는 조향 장치
KR10-2016-0060078 2016-05-17
KR10-2016-0094241 2016-07-25
KR1020160094241A KR102509870B1 (ko) 2016-07-25 2016-07-25 토크 센서, 토크 앵글 센서 및 이를 포함하는 조향 장치

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US (1) US10739215B2 (ja)
EP (1) EP3460434B1 (ja)
JP (1) JP6946346B2 (ja)
CN (1) CN109154530B (ja)
WO (1) WO2017200296A1 (ja)

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KR102520962B1 (ko) * 2019-02-15 2023-04-12 현대모비스 주식회사 조향장치용 토크센서 모듈
CN112141211A (zh) * 2019-06-27 2020-12-29 罗伯特·博世有限公司 扭矩传感器、转向角传感器及相应集成传感器和监测系统
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EP3460434A1 (en) 2019-03-27
JP6946346B2 (ja) 2021-10-06
EP3460434A4 (en) 2019-05-15
US10739215B2 (en) 2020-08-11
CN109154530A (zh) 2019-01-04
CN109154530B (zh) 2021-03-02
JP2019516990A (ja) 2019-06-20
US20190178733A1 (en) 2019-06-13
EP3460434B1 (en) 2021-07-07

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